﻿/*
  KeePass Password Safe - The Open-Source Password Manager
  Copyright (C) 2003-2017 Dominik Reichl <dominik.reichl@t-online.de>

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

using System;
using System.Collections.Generic;
using System.Text;

namespace KeePassLib.Keys
{
  public enum KeyValidationType
  {
    MasterPassword = 0
  }

  public abstract class KeyValidator
  {
    /// <summary>
    /// Name of your key validator (should be unique).
    /// </summary>
    public abstract string Name
    {
      get;
    }

    /// <summary>
    /// Validate a key.
    /// </summary>
    /// <param name="strKey">Key to validate.</param>
    /// <param name="t">Type of the validation to perform.</param>
    /// <returns>Returns <c>null</c>, if the validation is successful.
    /// If there's a problem with the key, the returned string describes
    /// the problem.</returns>
    public abstract string Validate(string strKey, KeyValidationType t);
  }
}
